Lecture Notes on 18 Apr 2022

* Euler Characteristic Equation
  V - E + F = 2

* Five Regular Solids
  - Tetrahedron: 4 (V), 6 (E), 4 (F)
  - Cube: 8 (V), 12 (E), 6 (F)
  - Octahedron: 6 (V), 12 (E), 8 (F)
  - Dodecahedron: 20 (V), 30 (E), 12 (F)
  - Icosahedron: 12 (V), 30 (E), 20 (F)

  - Download images of the Five Regular Solids
https://www.cs.utexas.edu/users/mitra/csSpring2022/cs313/notes/platonic_solids.jpeg

* Graph Implementation
  - Download the map of cities in the US
https://www.cs.utexas.edu/users/mitra/csSpring2022/cs313/notes/US_Cities.pdf
  - Download the textual representation of this graph
https://www.cs.utexas.edu/users/mitra/csSpring2022/cs313/notes/graph.txt